0507901 - FZÚ 2020 RIV US eng J - Journal Article
Nuzhnyy, Dmitry - Petzelt, Jan - Bovtun, Viktor - Kamba, Stanislav - Hlinka, JiříSoft mode driven local ferroelectric transition in lead-based relaxors.
Applied Physics Letters. Roč. 114, č. 18 (2019), s. 1-5, č. článku 182901. ISSN 0003-6951. E-ISSN 1077-3118
R&D Projects: GA MŠMT EF16_019/0000760; GA ČR GA18-09265S
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : ferroelectric transition * soft mode * effective medium approximation
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.597, year: 2019
Method of publishing: Limited access
https://doi.org/10.1063/1.5090468In this letter we report analysis performed on the published IR-THz response in relaxor Pb(Mg1/3Ta2/3)O3 using effective medium approximation and have revealed that the lowest-frequency phonon polarized perpendicularly to the local polarization of polar nanodomains softens below ~900 K according to the Cochran law and the corresponding low-frequency permittivity obeys the Curie-Weiss law.
Permanent Link: http://hdl.handle.net/11104/0298865
